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Other Invertebrates

  • Common earthworm
  • European crayfish
  • Great grey slug
  • Great pond snail
  • Great ramshorn
  • Horse-leech
  • Painter's mussel
  • Raft spider 
  • Roman snail
  • Taiga tick
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Great ramshorn

Coretus corneus

Description:
The shell of the great ramshorn, a species of large air-breathing freshwater snail, is shaped like a flat coil, reaching 25 to 32 centimetres in diameter. It is olive brown to brown in colour. The snail has a pair of long, filamentary tentacles, with eye spots at their base.

Habitat:
The great ramshorn lives in still or slow-moving water with ample vegetation and is common throughout Europe and East Asia.

Habits:
These snails feed mainly on algae, detritus and silt. They can carry various dangerous parasites that affect fish and warm-blooded animals.

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